Computing-scale.



M. T. HUW.

COMPUTING SCALE.

A'PPLIOATION FILED MAY 14, 1913.

Yatented Feb. 23, 19-15.

WITNESSES M.'T. HUW

4 COMPUTING SCALE. APPLIOATI K FILED MAY 14. 1913'.

WITNESSES:

Arm/MY Patented Feb. 23, 1915.

E0"! TOY H'UW, OF NEW YORK, NFY.

comrurnve-soanri- Specification of Letters. Patent.

Patented res. eaters.

Application filed May 14, 1913. Serial No. 767,579.

To'all whom it may concern:

Be it known that I, Mor Tor How, a

citizen of the United States of America, and

resident of New York, in the county of New York and State of New York, (whose postoffice address is No. 12 Pell street, New York, N. Y.,) have invented certain new and useful Improvements in Computin Scales, of which the-following is a. speci cation. v

This invention relates to improvementsin calculating apparatus, such as computing-- scales, for indicating relations between a weight factor and a price facton.

One of the principal objects of this invention is to provide an apparatus which will be accurate, efiicient, and capacitated for controlling and selectively exposing a legible indi ium irrespective of the number of indicia utilized and possible of selective exposure.

Another object is simplicity and compactness of construction.

' While attention is called particularly tov the structural features and the various adjustments, it should at the outset be understood that the invention has reference not bodiment of the invention as at present and Fig. 7

only to computing apparatus, but also to testing or tension apparatus, and of course to all improvements within the scope and spirit of the invention as it is set forth in the claims.

In the accompanying drawings, which are;

to be taken as a part of this specification, and in which I have shown'a form of emprefe'rred: Figure 1 is a front elevation, partly broken away, of one embodiment of this invention; Fig. 2 is a cross-section on the line 22 of Fig. 1, looking from right to left; Fig.3 is a detail of an adjustment for the indicating cord; Fig. 4 is an elevation of the same; Fig. 5. is a detail of one of the revolving indicators or diums; Fig. dis a view taken on the line 6-6 of Fig. 5; is a view similar to Fig, 5, but

' illustrating another and possible method of mounting one of the revolving indicators or BIS drums.

Similar reference characters refer to simi' lar parts throughout the several views of the drawings.

'Referring to the numerals" on the drawof sheet brass or other suitable material,

' within which are located and mounted the being fastened to the transversely extending bar 10, which may be riveted to the casing 7 as shown at 11 and 11 in Fig. l.

12 and 12 are angle beams resiliently connected to bar 10 by means of the springs 13. At the right and left hands of beams 12 and 12 are flanged portions 14 to which are fastened the strips 15 serving to reinforce said beams, and also to form a support for the vertical rods 16 extendin downwardly through the apertures 17 an 18 at the lower extremity of casing 7. 19 is another beam connecting the rods 16 outclearly understood that the beams 12 and 12', rods 16 and beam 19 form a rectangular frame, which, as a unit, will operate against the tension of spring 13, when a load or weight is applied at the hook 20 attached to the beam 19.

Referring now particularly to Fig. 2, it will be observed that the rods'lfi have rack portions 21 and 21' meshing with cars 22 and 22, which in turn are rigidly astened to what will hereinafter be referred to as indicia-bearing members 23 and- 2 1, said members 23 and 24 in this embodiment comprising drums that are rotatably mounted upon shafts 25 and 26, respectively, and cons'isting of a hub at each end, and radial ribs extending to a cylindrical body upon the circumferential'surface of which is attached in any well-known manner a printed sheet of paper or the like carrying, in transverse columns, first, Wei ht indicia, appearing at the extreme left 0% the drums, and following that, in olumns from left to right, indicia of prices.

7 It will also be observed that the ,index 30 in order to adjust the cord 28in case it should not be in propervhorizontalalinement with the numerals on the indicating member or drum 23. l i 1' 31 is a tension springwhieh will always keep thec rd28wuh as, said settles In the casing 7, immediately in front of cords 28 and 29, are elongated slots each" aving numbers in a horizontal row, advancing arithmetically r from leftto right asshown, and alincd vertihaving the casing 7 in such cal-1y with .the

price columns on the drums. 35 are segments pivoted on the shafts 36 extension rods 3'? upon which counter-weights 38 are adjustably secured.

39 ar'e plates forming a circumferential guide for the chains so, which in turn are anchored betweembeams l2 and 1.9.

in the modification shown in Figs. 5 and 6, the shaft 26 terminates in a socket -11 held firmly against the casing 7 by the wing-nut 4-2- allowing for lateral adjustment in the slot 43.

In the modification shown in Fig. 7, the

shaft 26 terminates in an integral spindle and ball-impingingshoulder as shown; the spindle being journaled in the exteriorly threaded socket 44 mounted as illustrated in manner that a ballliearin'g, via the balls 45, is established for the shaft.

The operation of this embodiment of this invention, which should largely be obvious, is siib'st'antially as follows: Upon applying a load to the hook 20, the rectangular frame (12,12, 16 and 19) descends through the apertures 17 and 18, thereby rotating the gears 22 and 22 in the direction of the arrows, thereby rotating the indicia-lfaring members 23 and 24, in opposite directions to a @ointwher'e the load equalizes the tension ofspring 13', thereby causing a sto If this load is, say, seven pounds the in icia-he'arin'g members 23 and 24 will bothassume the position. illustrated in l, and if the price per pound of the Triad applied is, say, twenty-five cents, the cost as seven-pounds at twenty-five cents er uma will Be mann d 6n the drum 23 in thepr'ice column that corresponds with the number *25 on scale 34, so that a cost of $1.75 fbr the "seven pounds, at twenty-five cents per pound, is indicated. Of course fractions 'may be used as well as units, although, for the sake of clearness, they are notshown. The beams 12 and 12 in descending pull the chains 40 down, acting against the counter-weights 38. In this manner there will be in addition to the tension of the spring 13, an additional adjustable weight which can be varied according to the Wear of this apparatus, or if the spring 13 should in time lose some of its tensional properties, due for instance to imperfect tempering, the countenw'ei hts 38 may be shifted down on the-rods 37 t'i'ere'by giving said rode a longer leverag and increasing the momentum of the peace-1am eflect. After releasing the load from the Lhook 20, the spring 13 will withdraw the remnant frame (12, 12, 16 and 19) to its normal position. so that the indicia-bearing members 23 and 2 1, and siimlltaneously the counter-\veightS-SS, will return to normal position due to gravity. In this Way the chain i0 will naturally always be under a slight tension. There is also an advantage in the employment of the spaced rods 16 with their respective racks and the pinions engaging the said racks, for by reference to Fig. 2, it will be evident that the pinions thus have opposite hearings on the rectangular frame and in ellect constitute roller bearings for said frame that tend to prevent lateral movement of the same in either direction and obviate any binding action with consequent friction. I

'It will be evident that by the provision of any desired plurality of drums it is possible to make a machine that will cover a. practically infinite rea t weights and prices, without increasing the horizontal extent of the device, and without impairing legibility. At the same time, the machine in well balanced, because of the manner in which operating strains are evenly distributed with reference to the point of suspension.

Inasmuch as many changes could be made in the above construction, and many apparently widely different embodiments of 'my invention couldbe made without departing from the 'sc'opcthereof, it is intended that all matter contained in the above description or shown in the accompanying drawings s'hallbe interpreted as illustrative and not in a limiting sense. I It is also to be understood that the guage used in the following claims is intend'edto cover all the generic and specific features of the invention herein described and all statements o fthe sec 0 of the inventioii, which, as a matter of anguage might be said to therebetween,

described y invention, what I claim as new and desire to secure by Letters Patent, is:- 1. In apparatus of the character set forth,

the tic'imbniation with a support-and scales" nausea ma on, of oppq' 'rotatabli' indiciacarrying member's urnaled in the support and cooperating respectively with the scales, pinion's connected with the rotatable'm'e'mbers, and a frame 'movably mounted in the support and having oppositel disposed racks respectively in mesh wit the pinions and bein' held thereby against substantial lateral isp'liiceinent.

2. n apparatus of the character get forth,

" the scalesyvpinions connected with the rotatable members, and a frame movably mount.-

I ed in the support and including spaced sub.-

either direction,

sides of the stantially parallel ro'dslocated on opposite inionsand having racks on. their inner sides that respectively 'enga e upper and a lower view openingand'scales located alongside the 1 same, of upper and 1 lower indicia carrying drnms within the cue mg behind the new openings, mions on the;

' ends of the drums, a frame s idable in the casing and having spaced rods located on A p 4 I the said piemns, said pmions being m veropposite sides of thepinionsn and racks onthe inner sides of therods, each rack mesh- 3 'su stantially preventing: lateral movement with one of the pinions and said pinions' of the frames, 7 .7

I 4;; In apparatus of the characterset forth, the/ combination with a casing "having an lipper and alower' view opening and scales located, alongside the same,'of upperand lo'wer indicia carrying drums 1onrnaled within'the casing behind the view openings and havingsubstantially parallel axes of rotation, pmions on the ends of the drums,

a vertically slidable film in the casing haw-l I in'g sets of spaced rods located at the ends of I the drnms'and on oppo'sitejsides of the pinions, and racks on the inner sides of the...

rods, each pinions. l,

5, In a paratus of the cli'aracter'set fo the combination with a casing ofa pair 0 rack meshing 'with one of the fixed scales arranged oneabove another, a I

frame bodily and vertically movable transversely of the scales, a-weiight-supportin means connected to the frame, a. pair 0 indicie carrying members-each jrotatively supported in the casing adjac ent gone of the fl'xediscales, 'a se arate pinion carried by each'ofeid 8111 rs a'rack member car tical alinfiient, and the rack'member'includin'g'two series ofvertically arranged rack teeth, each series of teeth being adapted to coiiperate with one of said "pinions, and one series of teethbeing vertically ofl'set from -the other,

In witness whe'reof,-I have hereunto signed my name in the presence of two witnesses.-

MOY TOY HUW. Witnesses: a '1. v

MOY S. TIGHE, ALDA L. Mnmm. 

